FI934231A0 - A method for controlling a phase-locked loop and a phase-locked loop - Google Patents

A method for controlling a phase-locked loop and a phase-locked loop

Info

Publication number
FI934231A0
FI934231A0 FI934231A FI934231A FI934231A0 FI 934231 A0 FI934231 A0 FI 934231A0 FI 934231 A FI934231 A FI 934231A FI 934231 A FI934231 A FI 934231A FI 934231 A0 FI934231 A0 FI 934231A0
Authority
FI
Finland
Prior art keywords
phase
locked loop
controlling
locked
loop
Prior art date
Application number
FI934231A
Other languages
Finnish (fi)
Swedish (sv)
Other versions
FI97003C (en
FI934231A (en
FI97003B (en
Inventor
Antti Kivijaervi
Original Assignee
Nokia Telecommunications Oy
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nokia Telecommunications Oy filed Critical Nokia Telecommunications Oy
Priority to FI934231A priority Critical patent/FI97003C/en
Publication of FI934231A0 publication Critical patent/FI934231A0/en
Priority to PCT/FI1994/000432 priority patent/WO1995009485A1/en
Priority to AU77003/94A priority patent/AU7700394A/en
Priority to DE69422990T priority patent/DE69422990T2/en
Priority to EP94927679A priority patent/EP0721698B1/en
Publication of FI934231A publication Critical patent/FI934231A/en
Application granted granted Critical
Publication of FI97003B publication Critical patent/FI97003B/en
Publication of FI97003C publication Critical patent/FI97003C/en

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION, OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L7/00—Automatic control of frequency or phase; Synchronisation
    • H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
    • H03L7/16—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop
    • H03L7/18—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop
    • H03L7/197—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop a time difference being used for locking the loop, the counter counting between numbers which are variable in time or the frequency divider dividing by a factor variable in time, e.g. for obtaining fractional frequency division
    • H03L7/199—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop a time difference being used for locking the loop, the counter counting between numbers which are variable in time or the frequency divider dividing by a factor variable in time, e.g. for obtaining fractional frequency division with reset of the frequency divider or the counter, e.g. for assuring initial synchronisation
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION, OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L7/00—Automatic control of frequency or phase; Synchronisation
    • H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
    • H03L7/08—Details of the phase-locked loop
    • H03L7/081—Details of the phase-locked loop provided with an additional controlled phase shifter
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION, OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L7/00—Automatic control of frequency or phase; Synchronisation
    • H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
    • H03L7/08—Details of the phase-locked loop
    • H03L7/14—Details of the phase-locked loop for assuring constant frequency when supply or correction voltages fail or are interrupted
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION, OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L7/00—Automatic control of frequency or phase; Synchronisation
    • H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
    • H03L7/08—Details of the phase-locked loop
    • H03L7/14—Details of the phase-locked loop for assuring constant frequency when supply or correction voltages fail or are interrupted
    • H03L7/143—Details of the phase-locked loop for assuring constant frequency when supply or correction voltages fail or are interrupted by switching the reference signal of the phase-locked loop
    • H03L7/145—Details of the phase-locked loop for assuring constant frequency when supply or correction voltages fail or are interrupted by switching the reference signal of the phase-locked loop the switched reference signal being derived from the controlled oscillator output signal
FI934231A 1993-09-27 1993-09-27 Method for controlling a phase-locked loop and a phase-locked loop FI97003C (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
FI934231A FI97003C (en) 1993-09-27 1993-09-27 Method for controlling a phase-locked loop and a phase-locked loop
PCT/FI1994/000432 WO1995009485A1 (en) 1993-09-27 1994-09-26 Method for controlling a phase-locked loop, and a phase-locked loop
AU77003/94A AU7700394A (en) 1993-09-27 1994-09-26 Method for controlling a phase-locked loop, and a phase-locked loop
DE69422990T DE69422990T2 (en) 1993-09-27 1994-09-26 METHOD FOR CONTROLLING A PHASE CONTROL CIRCUIT AND PHASE CONTROL CIRCUIT
EP94927679A EP0721698B1 (en) 1993-09-27 1994-09-26 Method for controlling a phase-locked loop, and a phase-locked loop

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI934231A FI97003C (en) 1993-09-27 1993-09-27 Method for controlling a phase-locked loop and a phase-locked loop
FI934231 1993-09-27

Publications (4)

Publication Number Publication Date
FI934231A0 true FI934231A0 (en) 1993-09-27
FI934231A FI934231A (en) 1995-03-28
FI97003B FI97003B (en) 1996-06-14
FI97003C FI97003C (en) 1996-09-25

Family

ID=8538669

Family Applications (1)

Application Number Title Priority Date Filing Date
FI934231A FI97003C (en) 1993-09-27 1993-09-27 Method for controlling a phase-locked loop and a phase-locked loop

Country Status (5)

Country Link
EP (1) EP0721698B1 (en)
AU (1) AU7700394A (en)
DE (1) DE69422990T2 (en)
FI (1) FI97003C (en)
WO (1) WO1995009485A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000069088A1 (en) * 1999-05-06 2000-11-16 Navcom Technology, Inc. Spread-spectrum gmsk/m-ary radio with oscillator frequency correction
US7010076B1 (en) 1999-10-29 2006-03-07 Adc Telecommunications, Inc. Systems and methods for holdover circuits in phase locked loops
US6313708B1 (en) * 2000-07-26 2001-11-06 Marconi Communications, Inc. Analog phase locked loop holdover
JP7295850B2 (en) * 2017-10-12 2023-06-21 シナプティクス インコーポレイテッド Phase lock and restorer

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT986172B (en) * 1973-06-18 1975-01-20 Fatme Spa AUTOMATIC SYNCHRONIZATION DEVICE FOR ONE OSCILLATOR IN PARTICULAR FOR TELE COMMUNICATION SYSTEMS
US4531102A (en) * 1983-02-28 1985-07-23 Gk Technologies, Incorporated Digital phase lock loop system
IT1223524B (en) * 1987-12-18 1990-09-19 Honeywell Bull Spa SELF-CALIBRATING PHASE HOOK CIRCUIT

Also Published As

Publication number Publication date
WO1995009485A1 (en) 1995-04-06
FI97003C (en) 1996-09-25
DE69422990D1 (en) 2000-03-16
EP0721698B1 (en) 2000-02-09
FI934231A (en) 1995-03-28
DE69422990T2 (en) 2000-06-29
FI97003B (en) 1996-06-14
EP0721698A1 (en) 1996-07-17
AU7700394A (en) 1995-04-18

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Legal Events

Date Code Title Description
FG Patent granted

Owner name: NOKIA TELECOMMUNICATIONS OY

BB Publication of examined application